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path: root/drivers/iio/accel/adxl367.c
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Diffstat (limited to 'drivers/iio/accel/adxl367.c')
-rw-r--r--drivers/iio/accel/adxl367.c48
1 files changed, 10 insertions, 38 deletions
diff --git a/drivers/iio/accel/adxl367.c b/drivers/iio/accel/adxl367.c
index 0289ed8cf2c6..47feb375b70b 100644
--- a/drivers/iio/accel/adxl367.c
+++ b/drivers/iio/accel/adxl367.c
@@ -179,7 +179,7 @@ struct adxl367_state {
unsigned int fifo_set_size;
unsigned int fifo_watermark;
- __be16 fifo_buf[ADXL367_FIFO_SIZE] ____cacheline_aligned;
+ __be16 fifo_buf[ADXL367_FIFO_SIZE] __aligned(IIO_DMA_MINALIGN);
__be16 sample_buf;
u8 act_threshold_buf[2];
u8 inact_time_buf[2];
@@ -447,21 +447,17 @@ static int adxl367_set_fifo_format(struct adxl367_state *st,
fifo_format));
}
-static int adxl367_set_fifo_samples(struct adxl367_state *st,
- unsigned int fifo_watermark,
- unsigned int fifo_set_size)
+static int adxl367_set_fifo_watermark(struct adxl367_state *st,
+ unsigned int fifo_watermark)
{
- unsigned int fifo_samples = fifo_watermark * fifo_set_size;
+ unsigned int fifo_samples = fifo_watermark * st->fifo_set_size;
unsigned int fifo_samples_h, fifo_samples_l;
int ret;
if (fifo_samples > ADXL367_FIFO_MAX_WATERMARK)
fifo_samples = ADXL367_FIFO_MAX_WATERMARK;
- if (fifo_set_size == 0)
- return 0;
-
- fifo_samples /= fifo_set_size;
+ fifo_samples /= st->fifo_set_size;
fifo_samples_h = FIELD_PREP(ADXL367_SAMPLES_H_MASK,
FIELD_GET(ADXL367_SAMPLES_VAL_H_MASK,
@@ -475,30 +471,8 @@ static int adxl367_set_fifo_samples(struct adxl367_state *st,
if (ret)
return ret;
- return regmap_update_bits(st->regmap, ADXL367_REG_FIFO_SAMPLES,
- ADXL367_SAMPLES_L_MASK, fifo_samples_l);
-}
-
-static int adxl367_set_fifo_set_size(struct adxl367_state *st,
- unsigned int fifo_set_size)
-{
- int ret;
-
- ret = adxl367_set_fifo_samples(st, st->fifo_watermark, fifo_set_size);
- if (ret)
- return ret;
-
- st->fifo_set_size = fifo_set_size;
-
- return 0;
-}
-
-static int adxl367_set_fifo_watermark(struct adxl367_state *st,
- unsigned int fifo_watermark)
-{
- int ret;
-
- ret = adxl367_set_fifo_samples(st, fifo_watermark, st->fifo_set_size);
+ ret = regmap_update_bits(st->regmap, ADXL367_REG_FIFO_SAMPLES,
+ ADXL367_SAMPLES_L_MASK, fifo_samples_l);
if (ret)
return ret;
@@ -1276,14 +1250,11 @@ static int adxl367_update_scan_mode(struct iio_dev *indio_dev,
{
struct adxl367_state *st = iio_priv(indio_dev);
enum adxl367_fifo_format fifo_format;
- unsigned int fifo_set_size;
int ret;
if (!adxl367_find_mask_fifo_format(active_scan_mask, &fifo_format))
return -EINVAL;
- fifo_set_size = bitmap_weight(active_scan_mask, indio_dev->masklength);
-
mutex_lock(&st->lock);
ret = adxl367_set_measure_en(st, false);
@@ -1294,11 +1265,12 @@ static int adxl367_update_scan_mode(struct iio_dev *indio_dev,
if (ret)
goto out;
- ret = adxl367_set_fifo_set_size(st, fifo_set_size);
+ ret = adxl367_set_measure_en(st, true);
if (ret)
goto out;
- ret = adxl367_set_measure_en(st, true);
+ st->fifo_set_size = bitmap_weight(active_scan_mask,
+ indio_dev->masklength);
out:
mutex_unlock(&st->lock);